Millions of dollars pledged by the international community to pay for the education of Syrian refugee children has gone missing, according to an investigation by Human Rights Watch (HRW).

In 2016, a conference in London attended by German Chancellor Angela Merkel, as well as David Cameron and John Kerry, then-UK prime minister and US secretary of state, respectively, pledged $1.4 billion to help over 1.5 million displaced Syrian children go to school to prevent the emergence of a “lost generation.” The six largest donors were the European Union, the US, Germany, the United Kingdom, Norway, and Japan, and the money was due to go to Turkey, Jordan, and Lebanon – the three countries hosting the most Syrian refugees.

The HRW investigation found “large discrepancies” between the money that was pledged and what was actually received by the host countries.